by Lindsay H. Jones, USA TODAY Sports

by Lindsay H. Jones, USA TODAY Sports

Police in San Jose arrested Smith on Friday morning on suspicion of DUI after a single-car accident around 7 a.m. Smith was not injured, and was taken to Santa Clara County Jail. He is also facing a charge of possession of marijuana, according to the Santa Clara County Sheriff's Office.

Smith was released after posting a $5,250 bond, and reported to the Niners' training facility in nearby Santa Clara in time for Friday's practice.

San Francisco coach Jim Harbaugh said he expects Smith to play Sunday against the Indianapolis Colts.

Harbaugh first declined to address Smith's availability for the game, but changed his answer after he was asked why no decision had been made compared to the decision last year leave defensive lineman Demarcus Dobbs behind when the team traveled to St. Louis the day after Dobbs was arrested on DUI and marijuana charges.

"I'm not really leaving it up in the air," Harbaugh said.

Harbaugh several times mentioned the NFL's "exclusivity" policy for punishing players as outlined in the collective bargaining process, meaning the league, and not the team, would handle any discipline for Smith.

An NFL spokesman told USA TODAY Sports earlier Friday that Smith's arrest would be reviewed under the substance abuse policy.

Harbaugh repeatedly declined to address the specifics of Smith's arrest or his own feelings about it beyond saying he was "disappointed."

Harbaugh said he encouraged Smith to participate in Friday's practice, held several hours after Smith posted a $5,250 bond and was released from jail.

"He seemed like he had his wits about him," Harbaugh said.

The arrest was first reported by CSN Bay Area.

This is Smith's second arrest on a drunken driving charge, though charges from his January 2012 arrest in Miami Beach were reduced to reckless driving. The NFL typically does not punish players for a first DUI, but a second arrest could trigger a two-game suspension, like the one the NFL recently slapped on Minnesota fullback Jerome Felton.

Smith, along with former teammate Delanie Walker, was sued last month by a man who says he was shot in the leg at a party thrown at Smith's San Jose home. No criminal charges have been filed in that case.

Smith, 23, has 37 sacks including 3.5 this year, since he was drafted at No. 7 in 2011.